To provide an operation panel device and a diagnosis or treatment device that have high operability as compared with the conventional devices.SOLUTION: An operation panel device comprises: a first operation button unit 11 including a single operation button or a plurality of operation buttons for performing an instruction of relative positional relation between a target person or target object and a gantry； a second operation button unit 21 including a single operation button or a plurality of operation buttons for performing an instruction on start and end of processing for performing predetermined physical action for diagnosis or treatment on a target person or target object in a bore of the gantry from the gantry side； and a third operation button unit 31 including a single operation button or a plurality of operation buttons, operation frequencies of which are lower than those of the respective operation buttons included in the first and second operation button units 11, 21, for instructing predetermined processing.SELECTED DRAWING: Figure 2【課題】従来に比べて操作性が高い操作パネル装置及び診断又は治療装置を提供する。【解決手段】対象者又は対象物とガントリとの相対的な位置関係の指示を行う単一の操作ボタン又は複数の操作ボタンを含んでなる第１操作ボタン部１１と、ガントリ側から当該ガントリのボア内の対象者又は対象物に対して診断又は治療のための所定の物理的作用を施す処理の開始及び終了に関する指示を行う単一の操作ボタン又は複数の操作ボタンを含んでなる第２操作ボタン部２１と、第１及び第２操作ボタン部１１，２１に含まれる各操作ボタンよりも操作頻度の低い所定の処理を指示する単一の操作ボタン又は複数の操作ボタンを含んでなる第３操作ボタン部３１とを備える。【選択図】図２
